check engine ACURA INTEGRA 1998 Service Repair Manual

I
Troubleshooting
17-14
Noise and Vibration
NOTEr Pump noise in first 2 - 3 minutes after starting in cold weather is normal.
Humming
Rattle or chattering
Humming due to pulsation oI lluid is normal, particularly when the wheel isturned with the vehicle stoooed.
Outlet hose (High-pressure hose)touching the frame.
Right cylinder end seal squeak.
Pump noise, though not loud, from tho valv6 body unit can be heard when turn-ing the steering wheel to full lock in either direction. This is normal. Do not hold
the steering wh6el at tull lock tor more that live seconds wh€n inspecting.
Loose steering shaft connector,tie-rod, or ball ioint.
Check and tighten, or replacepans as necessary,
Column shaft wobbling.Reolace the column assemblv.
Check ihe rack guide tor proper
adjustment (see page 17-21).Adiust, if nec€ssary.
Rattling sound and feeling when turning the steering wheel right and left with the
engine OFF is normal.

Inspection and Adjustment
Steering Operation
Place the front wheels in the straight ahead position and
measure the distance the steering wheel can be turned
without moving the front wheels.
ROTATIONAL PLAY: 0 - 10 mm {0 - 0.39 inl
lf the play exceeds the service limit. perform rack guide
adiustment (see page 17-211.
lf the play is still excessive after rack guide adjustment.
inspect the steering linkage and gearbox as described
on the neld page.
Power Assist Check with
Vehicle Parked
Check the power steering fluid level (see page 17-
21) and pump belt tension (see page 17-201.
Start the engine, allow it to idle. and turn the steer
ing wheel from lock-to-lock several times to warm
up the fluid.
Attach a spring scale to the steering wheel. With the
engine idling and the car on a clean. dry floor. pull
the scale as shown and read it as soon as the tires
begin to turn,
4. The scale should read no more than 34 N (3.5 kgf,
7.7 lbf). lf it reads more, check the gearbox and
pump.
ROTATIONAL PLAY

Inspection and Adjustment
Pump Belt
NOTE: When using a new belt, first adjust the deflection
or tension to the values for the new belt, then readjust
the deflection or tension to the values for the used belt
after running engine for five minutes,
Inspection
Attach the soecial tool to the belt and measure the ten-
sion of the belt.
Tension:
Usad Belt: 390 - 54O N {/10 - 55 kgf. 88 - 120 lbf}
Nsw Belt: 740 - 880 N {75 - 90 kgf. 170-2(X)lbf)
NOTE:
. lf there are cracks or any damage evident on the belt,
replace it with a new one.
. Follow the manufacturer's instructions for the tension
gauge.
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CRANKSHAFT PULEYBELT TENSION GAUGE07JGG - 001010A
Inspect the pump belt for cracks or any damage.
Replace the belt with a new one if necessary.
Mea3urement without Bah Tonsion Gaugo:
Apply a force of 98 N {10 kgt,22 lbll and measure the
deflection between the power steering pump and the
crankshaft pulleys,
Drllection:
Us.d B6h: 11.5 - 13.5 mm (0.45 - 0.53 in)
New Bsh: 8.0 - 10.0 mm 10.31 - 0.39 inl
POWER STEERING PULLEY
17-20
Adiustment
1. Loosen the power steering pump mounting bolts.
2. Turn the adjusting bolt to get the proper belt ten-
sion, then retighten the bolts.
3. Stan the engine and turn the steering wheel from
lock-to-lock several times. then stop the engine and
recheck the deflection of the belt.
24 N.m l2.a kgf.m, 17 lbf.ftl

Rack Guide AdjustmentFluid Replacement
Check the reservoir at regular intervals, and add fluid as
neceSsary.
CAUTION: Use only Genuine Honda Powel Ste€ring
Fluid-V. Using other fluids such as ATF or othor manu-
laclurer's power ste€ring fluid will damag€ the systom.
SYSTEM CAPACIW:
B18Gl ongine:
1.06lit€r (1.12 US. qt,0.93 lmp.qt)
Excopt 8l8Cl ongino:
1.0 lher (r.06 US. qt.0.88 imp.qtl
at disa$ombly
RESERVOIR CAPACITY:
0.,0 liter {0.42 US. qt, 0.35 lmp.qt}
LEVEL LINE
LEVEL LINE
Raise the reservoir and disconnect the return hose
that goes to the oil cooler.
Connect a hose of suitable diameter to the discon-
nected return hose and put the hose end in a suit-
able container.
CAUTION: Take care not to spill thq fluid on lhe
body and parts. Wipe off any spilled fluid al onc€.
Start the engine. let it run at idle, and turn the steer-
ing wheel from lock-to-lock several times. When
fluid stops running out of the hose, shut off the
engine. Discard the fluid.
2.
RETURN HOSE{From the oilcooler)
4. Reinstallthe return hose on the reservoir.
5. Fill the reservoir to the uDDer level line.
6. Start the engine and run it at fast idle, then turn the
steering from lock-to-lock several times to bleed air
from the system,
7. Recheck the fluid level and add some it necessary.
CAUTION: Do not lill the reservoir boyond thc
upper level line.
J.
4.
NOTE: Perform rack guide adjustment with the wheels
in the straight ahead position.
1. Loosen the rack guide screw locknut with the spe-
cialtool, then loosen the rack guide screw.
Tighten the rack guide screw until it compresses the
spring and seats against the rack guide, then loosen
it.
Retighten ihe rack guide screw to 3.9 N.m (0.4
kgf.m, 2.9 lbi.ft), then back it ofl to specified angle.
Speciliad Roturn Anglo: 20' Max
Tighten th€ locknut while holding the rack guide
screw.
RACK GUIDE SCREW
25Nm{2.5 kgf.m, 18 lbf ft)
LOCKNUT WRENCH. ilo mm079't 6 - SA50001
E
6.
Check for tight or loose steering through the com-
plete turning travel.
Perform following inspections:
. Steering operation (see page 17-18).
a Power assist with car parked.
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Inspection and Adjustment
Pump Pressure Check
Check the fluid Dressure as follows to determine
whether the trouble is in the pump or gearbox.
NOTE; First check the power steering fluid level and
pump belt tension.
CAUTION: Disconnect the pump outlet hose (high-pres-
sure line) with care so as not to spill the power steering
fluid on the frame and other parts,
1. Disconnect the pump outlet hose (high-pressure)
from the pump outlet fitting, then install the P/S
joint adapter (pump) on the pump outlet.
P/S PRESSURE GAUGE07a06 - 001mo1
OUTLET HOSE FITTINGHOSE ATTACHING BOLT11 N.m (1.1 kgt.m 8lbl.ft)
PRESSURECONTROL VALVE
P/SAOAPTER IHOSEI07NAK - SR30124
6 x 1,0 mm BOLT
lP.n ol tooll'| 1 N.m
11.1 kgi.m,8lbtftl
PUMPFITTING
Connect the P/S joint adapter (hose) to the power
steering pressure gauge, then connect the pump
outlet hose (high-pressure)to the adapter.
Install the power steering pressure gauge to the P/S
joint adapter (pump).
Open the shut-off valve fully.
Open the pressure control valve fulli.
1.
Start the engine and let it idle.
Turn the steering wheel from lock-to-lock several
times to warm the fluid to operating temperature.
Measure steady-state fluid pressure while idling. lf
the pump is in good condition, the gauge should
read less than 1500 kPa (15 kgflcm',213 psi).
lf it reads high, check the outlet hose or valve body
unit (see General Troubleshooting 17-101.
Close the pressure control valve, then close the
shut-off valve gradually until the pressure gauge
needle is stable, Read the pressure.
lmmediately open the pressure control valve fully.
CAUTION: Do not keep the pressure control valve
closed more then 5 seconds or the pump could be
damaged by over-heating.
lf the pump is in good condition, the gauge should
read at least 6,400 - 7,400 kPa (65 - 75 kgflcm',924- 1,067 psi). A low.eading means pump output is
too low for full assist. Repair or replace the pump.
P/S PRESSURE GAUGE07i.{)6 - (x)l(xrol
9.
10.
SHUT.OFF VAI.VE
17 -22
{
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Fluid Leakage Inspection
BOOTCheck for Ieaks.
GEARBOX and VALVE BOoY UNITCheck tor leaks at the mating surfaceand Ilare nut connections,
PUMP ASSEMBLYCheck Ior leaks at the pumD
seal, inlet and outlet fittings.
Inspect hoses for damage, leaks,interfe re n ce or twisting,Inspect fluid lines for damage,rusting or leakage.Inspect for leaks at hose andline ioints or connections.
Bl8Cl engineExc.pl 818Cl engine
17-23

a
BrakePedal
Pedal Height
1. Disconnect the brake switch connector, loosen thebrake switch locknut, and back oll the brake switchuntil it is no longer touching the brake pedal.
2. Turn up the jloor mat, and measure the pedal heightfrom the lett srde center of the pedal pad.
PUSHROD ERAKE SWITCHLOCKNUT LOCKNUT
swtTcH
BRAKE PEOAL PAOI
MEASURINGPOINT
Standard Pedal Hsight (wiih ftoor m8t removedl:
M/T: 160 mm {6 5/16 in}
A/T: 165 mm (6 1/2 in)
3. Loosen the pushrod locknut, and screw the pushrod
in or out with pliers until the standard pedal height
from the floor is reached. After adjustment, tighten
the locknut firmly. Do not adjust the pedal height
with the pushrod depressed.
{1.5 kgf.m, 11 lbt.ftl
19-5
Screw in the brake switch until its plunger is fully
depressed (threaded end touching the pad on thepedal arm). Then back off the switch 1/4 turn tomake 0.3 mm (0.01 in) of clearance between thethreaded end and the pad. Tighten the locknut firm-ly. Connect the brake switch connector.
CAUTION: Make sure that the brake lights go oflwhen the pedal is released.
5. Check the brake pedal free play as described below.
Pedal Free Play
1. Stop the engine, and inspect the play on the pedal
pad by pushing the pedal by hand.
Free Play: 1 - 5 mm {l/16 - 3/16 in)
2. lf the pedal free play is out of specification, adjustthe brake switch. tf the pedal free play is insuffi_cient, it may result in brake drag.
PEDAL PAD

Inspection and Adiustment
Parking Brake
Inspection
1. Pull the parking btake lever with 196 N
lbf) of force to Jully apply the parking
parking brake lever should be locked
soecified notches.
Lever Locked Notches: 6- l0
{20 kgf, 44
brake. The
within the
Pulled up with 196 N {2O kgf, 44 lbf)
LEVER LOCKED NOTCHES
2, Adjust the parking brake if the lever notches are out
of specification.
Adjustment
NOTE: After rear brake caliper servicing.loosen the park-
ing brake adjusting nut, start the engine, and depress the
brake pedal several times to set the self-adjusting brake
before adiusting the parking brake
1. Raise the rear wheels oIt the ground. and suppon
the car on safety stands.
!!@ ato"t the trort whoels bsfore jacking
up the roal ot tha car'
2. Make sure the parking brake arm on the rear brake
caliDer contacts the brake caliper pin.
19-6
8.
3. Pullthe parking brake lever up one notch'
Remove the rear console {see section 20)'
Tighten the adjusting nut until the rear wheels drag
slightly when turned.
7.
Release the parking brake lever fully, and check that
the rear wheels do not drag when turned. Readjust
if necessary.
Make sure the parking brakes are fully spplied when
the parking brake lever is pulled up fully.
Install the cap onto the parking brake cable end, and
reinstall the rear console.

Master Cylinder/Brake Booster
Master Cylinder InspectionPushrod Clearance Adjustment
NOTE: Master cylinder pushrod'to piston clearance must
be checked and adjustments made, if necessary, before
installing master cylinder.
1. Set the special tool on the master cylinder body;
push in the center shaft until the top of it contacts the
end of the socondary piston by turning the adjusting
nut.PUS'IROD ADJUSTTTiENT GAUGE07JAG - SDiOl(xl
SECOITDARYPISTON
CEl{IERSHAFT
MASTER CYLINDER
Without disturbing the center shaft's position,
the soecial tool upside down on the booster.
3. Install the master cylinder nuts and tighten to the
sDecified toroue.
4. Connect the booster inline with a vacuum gauge 0 -
101 kPa {0 - 760 mmHg, 30 in.Hg) to the booster's
engine vacuum supply, and maintain an engine
speed that will deliver 66 kPa (500 mmHg, 20 in.Hg)
vacuum.
5. With a feeler gauge, measure the clearance between
the gauge body and the adjusting nut as shown.
Clsarance: 0 - 0,i[ mm (0 - 0.02 inl
VACUUM GAUGElCommelcially availabl€|0 - 101 kPal0 - 760 mm H9,30 in.Hgl
AINUSTING NUT
BRAKEBOOSTEB
MAS'ER CYLINDER NUT15 N.m ll.5 kgf.m. 11 lbl.ftl
CAUTION:
. Do not spill blake fluid on the vohicle; it may damago
th6 paint; if brake fluid does contast ths paint, wash
it off immsdiately with water.
. Before reassembling. chock that all parts are tree of
dust and othor toreign particlgs,
. Do not trv to dissssemblo the master cylinder
assembly. Replace the mast€r cylinder assembly
with s new part if nocossary.
. Make sure no dirt or othor toroign matter is allowed
to contaminate th€ brako fluid.
RESERVOIR SEALCheck for damage and
deterioration.
ROD SEALCheck for damageand deterioration.
AIIUSNNG NUT
19-14
FEELER GAUGE

1.
8.
NOTE: lf the clearance between the gauge body
and adjusting nut is 0.4 mm (0.02 in), the pushrod-
to-piston clearance is 0 mm. However, if the clear-
ance between the gauge body and adjusting nut is
0 mm, the pushrod-to-piston clearance is 0.4 mm(0.02 in) or more. Therefore it must be adjusted and
rechecked.
lf clearance is incorrect, loosen the star locknut and
turn the adjuster in or out to adjust.
NOTE:
. Adjust the clearance while the specified vacuum
is applied to the booster.
. Hold the clevis while adjusting.
Tighten the star Iocknut securely.
Remove the special tool.
0 - o.il mm l0 - 0.02 inl
Brake Booster Inspection
Functions Tgst
1. With the engine stopped, depress the brake pedal
several times to deplete the vacuum reservoir, then
depress the pedal hard and hold it for 15 seconds. ll
the pedal sinks, either the master cylinder is
bypassing internally; or the brake system (master
cylinder, lines, modulator proportioning valve, orcaliper) are leaking.
Start the engine with the pedal depressed. lf thepedal sinks slightly, the vacuum booster is operat-
ing normally. lf the pedal height does not vary, the
booster or check valve is faulty.
With the engine running, depress the brake pedal
lightly. Apply just enough pressure to hold back
automatic transmission creep, lf the brake pedal
sinks more than 25 mm (1.0 in.) in three minutes,
the master cylinder is faulty. A slight change inpedal height when the A,,/C compressor cycles on
and off is normal. (The A/C compressor load
changes the vacuum available to the booster.)
Leak Test
1. Depress the brake pedal with the engine running,
then stop the engine. lf the pedal height does not
vary while depressed for 30 seconds, the vacuum
booster is OK. lf the pedal rises, the booster is
fau lty.
2. With the engine stopped, depress the brake pedal
several times using normal pressure. When thepedal is first depressed, it should be low. On con-
secutive applications, the pedal height should grad-
ually rise. lf the pedal position does not vary, check
the booster check valve.
Boostor Ch€ck Valve T6st
1. Disconnect the brake booster vacuum hose at the
booster,
Start the engine and let it idle. There should be vac-
uum available. It no vacuum is available. the check
valve is not working properly. Replace the brake
booster vacuum hose and check valve, and retest.
VACUUM HOSE(Check valve built-in)
STAR LOCKNUT22 t{.m12.2 ksl.m, 16lbf.ftl
cLEVtS
ADJUSTER
ADJUSTMENT GAUGE07JAG - SD40t00
9. Adjust the pushrod length as shown if the booster
is removed.
1161 0.5 mm14.61 0.02 inl
PUSHRODLOCKNUT15 N m 11.5 kgf m, 11 lbf'ftl
10. Instali the master cylinder.